• 자원ㆍ환경경제연구
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• 제17권2호
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• pp.327-347
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• 2008

본 연구는 기존의 조건부가치측정에서 채택하고 있는 전통적 응답메커니즘은 사실상 불확실성이 존재하지 않는 실제 거래에 적용되는 응답메커니즘이라는 점을 밝히고, 불확실성이 존재하는 실제 거래에 적용되는 실제 위험응답메커니즘과 가상 거래에 적용되는 가상 위험응답메커니즘을 제안하고 있다. 지불의사(WTP)와 제시가격(bidding price)을 단순 비교하여 구매여부를 결정하는 전통적 응답메커니즘과 달리, 실제 위험응답메커니즘은 WTP의 평균값이 제시가격보다 최소한 리스크프리미엄보다 커야만 구매하고, 그렇지 않으면 구매를 포기한다. 또한 가상 위험응답메커니즘은 실제 위험응답메커니즘과 구조는 같으나 실제 리스크프리미엄보다 적은 리스크프리미엄을 기준으로 구매의사가 결정된다. 본 연구에서는 실제 데이터를 이용하여 전통적 응답메커니즘, 실제 위험응답메커니즘 그리고 가상 위험응답메커니즘에 대응하는 WTP 추정치를 비교함으로써 가상 위험 응답메커니즘이 소위 과소평가편의와 과대평가편의를 줄일 수 있는 해결 방안이 될 수 있음을 보이고 있다.

• 한국산학기술학회논문지
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• 제10권5호
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• pp.1043-1051
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• 2009

본 연구는 극적인 타결을 이루어낸 한 미 FTA의 효력 발생이 이후 두 국가간 통화로 이루어지는 원/달러 환율의 행태에는 어떠한 영향을 줄 것인가에 대한 시사점을 얻기 위해 대미 FTA 국가들을 대상으로 FTA 체결 전 후의 환율행태가 어떻게 달라졌는지를 살펴보고 공통점 및 차이점을 발견하여 향후 원/달러환율의 행태를 전망하고자 하는 데에 목적을 두고 있다. 실증분석의 결과, 칠레를 제외하는 변동성 환위험프리미엄이 모두 효력 발생이후 다소 줄어든 반면, 칠레는 변동성과 환위험프리미엄 모두 다소 증가한 것으로 나타나 해당환율의 변동성 및 환위험프리미엄의 변화는 같은 방향으로 이루어지나 대상국가에 따라 차이가 있음을 보여주고 있다. 이러한 연구결과는 환율변화의 불확실성에 대비해야 하는 IT무역업체들에게 한 미 FTA 효력 발생 이후 원/달러환율의 변동성과 위험프리미엄 행태에 어떠한 변화가 예측되는지에 대한 정보를 제공해 줄 것으로 기대된다.

• 아태비즈니스연구
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• 제12권3호
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• pp.379-396
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• 2021

Purpose - The purpose of this paper is to study the rational payoff from the standpoint of foreign investors and the government when the government issues GDP-linked bonds to foreign investors. Design/methodology/approach - In this paper, the prices of 12 types of GDP-linked bond structures, which are classified according to the calculation cycle of the rate of change of linked GDP, the currency issued, and whether options are embedded, were evaluated. The Fama-French 3-factor model and the GMM-SDF model are used in the asset pricing model, and domestic and overseas investors used different basis assets. Findings - The KRW premium for US investors is estimated to be 43bp on a quarterly basis and 30bp on an annual basis, respectively, meaning that when the government issues bonds in KRW, the interest rate paid to US investors will be reduced by 30bp to 160bp (annually converted). Using the Fama-French 3 factor model, the KRW premium is the risk premium for the US market beta, meaning that if US investors do not intend to invest in US market beta, it is advantageous to receive an additional interest rate by investing in USD-denominated GDP-linked bonds. Korea's GDP- linked bond give US investors diversified investment utility, so they are willing to incorporate Korean GDP-linked bonds even if -150bp of interest is deducted from the structure issued to Korean investors. And as a result of estimating the value of the option through the GDP-linked bond with options that provides a floor for guaranteeing the principal, the value of the option linked to the annual GDP issued in dollars was the lowest. Research implications or Originality - Issuing dollar-denominated GDP-linked bonds linked to annual GDP with the option of guaranteeing the principal by the government is a way to increase investment opportunities for US investors and achieve financial stability of the government.

• 무역상무연구
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• 제17권
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• pp.93-125
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• 2002

This paper aims to find a reasonable solvency margin system in non-life insurance industry and also to evaluate the appropriateness of the current solvency margin regulation system in Korea. The current solvency margin system in Korea, based on EU's solvency margin model, was introduced during the 1997 financial crisis. The solvency requirement is not based on non-life insurer's risk, but simply on written premiums. The current solvency margin for general insurance, such as fire, marine, and automobile insurance, is determined by the greater between a premium-based amount and a claim-based amount, where the premium-based solvency margin is calculated by multiplying the net written premium for the preceding year by the premium based solvency margin ratio. Also, the amount of solvency margin for long term insurance is set at 4% of the policy reserve of the long term insurance. Still, there exist many differences between the current solvency margin regulation system in Korea and EU's model. This paper focuses on the rationality of the solvency margin regulation system, and compares the current system in Korea with EU's model and the RBC(Risk Based Capital) system in U.S. and Japan. Finally, this paper suggests a more specific and reasonable solvency margin system to be developed in Korea.

• 전기학회논문지
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• 제61권11호
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• pp.1578-1583
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• 2012

There are 3 systems in incentive-based normal load management in Korea; day or hour-ahead, week-ahead, months-ahead. These are originally similar in their operational implementation, but differ in their pre-notification period. Therefore the incentive of these systems should be different according to prenotification period. This is the key problem in implementing these load managements. Customers participating in these load managements feel their economic differences, depending on the risk by prenotification dates. The shorter prenotification period, the more risk take the customers. This paper proposes the method of incentive variation in prenotification difference, by using the theory of financial yield curve, which is used in analysing short and long duration bond interesting rates and is reflecting risk premium in their period.

• 인지과학
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• 제23권2호
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• pp.205-224
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• 2012

낮은 확률이지만 손실이 큰 위험한 사건에 대비해서 보험을 들려는 사람들은 확률의 차이에 어떻게 반응할까? 본 연구는 네 개의 실험에서 가상적인 화학 공장에서 발생할 위험한 사고의 확률을 직접 제시하거나 보험료, 보험금, 그리고 배율 보험금과 같은 간접적인 단서 정보를 제시하고 참여자의 위험 평정과 보험 구매 의사를 물었다. 참여자들은 보험료나 보험금보다는 배율 보험금으로 제시된 조건들에서 위험 사고의 확률 차이에 예민하게 반응하여 위험 지각을 평정하였다. 네 실험은 수렴해서 위험지각에 영향을 주는 직접 확률 정보에 대한 생태학적 타당도가 높은 단서가 배율 보험금임을 밝혔다. 본 연구의 결과는 위험의 지각에서 확률보다 빈도 정보를 강조하는 생태학적 단서 가설(Gigerenzer, 2000)의 예측과 일치한다.

• 수산경영론집
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• 제40권1호
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• pp.51-74
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• 2009

The purpose of this study is to ascertain that how the futures market of the Japanese frozen shrimp that is the only fisheries asset all over the world can be efficient. Accordingly, this paper examines efficiency and information flow of the Japanese frozen shrimp market using data from Kansai Commodities Exchange frozen shrimp futures closing prices and spot prices. And then this paper estimates a forward price model using that data. From the model, risk premium is estimated and we could also analyse the future information flow into the futures market which reveals future spot prices. This thesis reached to conclusions as follows: First, the null of zero risk premium is rejected and the value of that is negative. Second, the time pattern of information flow into the futures market is that most of the information on future price arrives within a week and for the last week, most of relevant information is already incorporated. The result of this study contrasts with that of Stockman(1978) about currency futures market of U.S.

• 보건의료산업학회지
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• 제6권2호
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• pp.165-177
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• 2012

This study examined market size of private health insurance premium and individual characteristics associated with the market size change in Korea, using wave 1 (2008) and wave 2 (2009) of Korea Health Panel. The market size was 24.4 trillion Korean won in 2008 and 26.9 trillion in 2009. The increase rate of private health insurance premium among those who were the elderly, single, or the poor was higher than that among their counterpart respectively. Health status and utilization were insignificant in determining the increase rate of private health insurance premium. These findings were more obvious among the uninsured in 2008 than among the insured in 2008. The increase of private health insurance premium in Korea imply the increase of willingness-to-pay for health risk through private sector. The authors suggest policy intervention for accessability to health care for the underprivileged and weak through enlargement of Korean social health insurance benefit.

• Journal of applied mathematics & informatics
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• 제27권5_6호
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• pp.1033-1047
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• 2009

In this paper, we consider a m-type risk model with Markov-modulated premium rate. A integral equation for the conditional ruin probability is obtained. A recursive inequality for the ruin probability with the stationary initial distribution and the upper bound for the ruin probability with no initial reserve are given. A system of Laplace transforms of non-ruin probabilities, given the initial environment state, is established from a system of integro-differential equations. In the two-state model, explicit formulas for non-ruin probabilities are obtained when the initial reserve is zero or when both claim size distributions belong to the $K_n$-family, n $\in$ $N^+$ One example is given with claim sizes that have exponential distributions.

• 자원ㆍ환경경제연구
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• 제14권4호
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• pp.793-816
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• 2005

양분선택형 조건부가치평가조사의 평가대상 비시장재화에 불확실성이 존재하는 경우, 응용 가능한 새로운 응답메커니즘을 기대효용 극대화 과정으로부터 도출한다. 전통적 응답메커니즘은 지불의사금액과 지불요구비용 간의 대소 관계를 단순 비교하는 반면, 위험 응답메커니즘이라고 부르는 새로운 응답메커니즘은 지불의사금액과 지불요구비용 간의 차이가 응답자들의 위험회피 정도를 나타내는 리스크프리미엄을 초과하는지 여부가 응답 기준이 된다. 따라서 불확실성이 존재하는 경우, 응답자의 위험회피 행동을 고려하지 않는 전통적 응답메커니즘은 리스크프리미엄 만큼 지불의사금액을 과소평가하게 될 위험이 있다. 전통적 응답메커니즘의 과소평가 문제는 동강보존가치 추정을 위한 조건부가치평가조사 자료를 이용하여 실증적으로 예시된다.